Nicholai is a distinctive boys' name in United States, ranking #2665 in 2008 with 47 recorded births. The name reached its all-time peak in 2017 with 51 births ranking #2520. Since 1996, the popularity has increased by 261.5%. In 2008, approximately 1 in every 43,403 boys born was named Nicholai. STABLE Recent data shows the name is currently stable.